Date: Fri, 15 Sep 2017 11:05:16 -0700 (PDT) From: Don Lewis <truckman@FreeBSD.org> To: eugen@grosbein.net Cc: ml@netfence.it, freebsd-ports@FreeBSD.org Subject: Re: FireFox memory usage Message-ID: <201709151805.v8FI5GDZ049767@gw.catspoiler.org> In-Reply-To: <59BBCB8C.8060103@grosbein.net>
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On 15 Sep, Eugene Grosbein wrote: > On 15.09.2017 18:35, Andrea Venturoli wrote: >> Hello. >> >> I'm on 10.3/amd64 with firefox-esr 52.3.0. >> >> Since a few days my 4GiB desktop is crawling due to swap usage and >> looking at top, I see FireFox using almost 7GiB of RAM (SIZE column), >> 2.5 of which are "RES". >> >> I don't think this is normal, since I'm not doing anything fancy (i.e. >> running webapps or opening tenth of windows/tabs). >> >> I've been using FF for several years and, while I recognize it's >> constantly getting slower, more bloated and more resource hungry, I find >> it hard to believe such a sudden rise in memory usage might be normal. >> >> One suspect I have is some kind of memory leak, since closing FF and >> reopening the same sites I had opened before will drop the RAM usage to >> under 1GiB. >> >> I'm lost at what to look at... I don't even know if it's an upstream or >> FreeBSD problem. >> >> I start by asking if anyone else is seeing this and/or if anything in >> the way it is ported or in its dependencies could be the cause of this. > > It leaks like female animal under Windows, too. This depends heavily on your > set of addons, though. For example, NoScript addon may provoke Javascript code > of sites to leak memory constantly retrying to get their garbage. > In such case, close/reopen a tab may help for some period of time. Javascript seems to be the culprit in my case. I do run NoScript, but I'm pretty sure that I had memory consumption issues before I added the NoScript addon. I keep a huge number of tabs open and I've seen Firefox consume 40+ GB of memory (I've currently got a lot of RAM and swap available on my desktop). Firefox memory consumption is what finally motivated me to do a reinstall to switch from i386 to amd64 several years ago, and since then was the motivation for a couple of RAM upgrades. Very recent versions of Firefox seem to have fixed this problem for me. I think this was fixed in the version 54 to 55 upgrade. I probably have 300-400 tabs open right now and Firefox memory consumption seems to have stabilized at a bit over 6 GB. It's been running for the last eight days.
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